I have Freedom 2 for PSP; I haven't really gotten too far into it, but from what I've played it's a lot of fun. I know that Portable 2nd G in Japan is like a cultural phenomenon or something and is a PSP killer-app/system-seller. The production values (graphics, music, gamplay) are all pretty great.
I think that the series coming to Wii is an interesting move and I'm excited about it. Monster Hunter is one of Capcom's key franchises, so there's going to be a lot of care going into MH3. Let's hope they push the system a little.